Several Dallas communities such as portions of Preston Hollow (including a portion of Old Preston Hollow, Preston Hollow North, and Preston Hollow West), a small portion of Vickery Meadow, and a portion of Addison are zoned to Hillcrest.[5][6]

The attendance rate for students at the school is 91%, compared with a state average of 96%. 52% of the students at Hillcrest are economically disadvantaged, 10% enroll in special education, 9% enroll in gifted and talent programs, and 34% are considered "limited English proficient."[7]